MAG B550M MORTAR Support for 3rd Gen AMD Ryzen™ Processors and future AMD Ryzen™ processors with BIOS update Supports DDR4 Memory, up to 4400+(OC) MHz Lightning Fast Game experience: PCIe 4.0, Lightning Gen 4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 Gen 2 Premium Thermal Solution: Extended Heatsink Design with additional choke thermal pad rated for 7W/mk and PCB with 2oz thickened copper are built for high performance system and non-stop gaming experience. Enhanced Power Design: 8+2+1 Duet Rail Power system, Digital PWM, Core Boost, DDR4 Boost. 2.5G LAN with LAN Manager: Upgraded network solution for professional and multimedia use. Delivers a secure, stable and fast network connection. Pre-installed I/O Shielding: Better EMI protection and more convenience for installation. Audio Boost: Reward your ears with studio grade sound quality for the most immersive gaming experience. Multi-GPU: With Steel Armor PCI-E slots. Supports 2-Way AMD Crossfire™ SOCKET: AM4 CPU (MAX SUPPORT): RYZEN 9 CHIPSET: AMD B550 Chipset DDR4 MEMORY: 4400(OC)/ 4300(OC)/ 4266(OC)/ 4200(OC)/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3733(OC)/ 3600(OC)/ 3466(OC)/ 3400(OC)/ 3333(OC)/ 3300(OC)/ 3200(JEDEC)/ 3000(JEDEC)/ 2933(JEDEC)/ 2666(JEDEC)/ 2400(JEDEC)/ 2133(JEDEC) MHz MEMORY CHANNEL: Dual DIMM SLOTS: 4 MAX MEMORY (GB): 128 PCI-E X16: 2 PCI-E X1: 2 SATAIII: 6 M.2 SLOT: 2 RAID: 0/1/10 LAN: 1x Realtek® RTL8125B 2.5G LAN USB 3.2 PORTS (FRONT): 1(Gen 1, Type C), 2(Gen 1, Type A) USB 3.2 PORTS (REAR): 1(Gen 2, Type C), 1(Gen 2, Type A), 2(Gen 1, Type A) USB 2.0 PORTS (FRONT): 4 USB 2.0 PORTS (REAR): 2 AUDIO PORTS (REAR): 5+ Optical S/PDIF (Realtek® ALC1200 Codec) DISPLAYPORT: 1 HDMI: 1 DIRECTX: 12 FORM FACTOR: Micro-ATX CROSSFIRE: Y OPERATING system: Support for Windows® 10 64-bit